Let me show you how to build a trellis with just 4 pieces of PT wood (redesigned). The secret is a routed channel made to fit livestock fence. Cut two 4x4s to five feet. Trim the fence panel to four using a cutoff tool. After measuring wire thickness, match to a router straight bit. The top and bottom will use 2x4s. Use one as a guide screwed to the side. Some routers have a baseplate that matches a standard 3.5” width. If your lumber is too wet or thick, your router might struggle. Start at a l